PBT和PA6共混体系的力学性能和相形态研究  

STUDY ON PHASE STRUCTURE AND MECHANICAL PROPERTIES OF PBT AND PA6 BLENDS

作　　者：聂景辉[1] 戚嵘嵘[1] 高培冬[1] 周持兴[1] 茅大联[2] 张边[2] 

机构地区：[1]上海交通大学化学化工学院,上海200240 [2]南通星辰合成材料有限公司,江苏南通226008

出　　处：《高分子材料科学与工程》2005年第5期197-200,共4页Polymer Materials Science & Engineering

基　　金：国家自然科学基金重大项目(50390095);江苏省"十五"攻关项目(BE2002031)

摘　　要：通过熔融法制备了PBT/PA 6共混体系。实验结果表明,PBT与PA 6的相容性较差,直接共混后其力学性能很差,而加入一种低成本的液体环氧树脂E-54作为PBT/PA 6复合体系的相容剂,力学性能明显提高。通过SEM进一步证实,环氧树脂的加入可以降低分散相粒子的大小,改善界面形态,提高共混物的相容性。Ternary composites based on Poly（butylenes terephthalate）（PBT）, PA6, and liquid epoxy resin were systematically investigated. The epoxy resin was demonstrated to be an efficient reactive compatibilizer for PBT/PA6 blends by fuctioning as a coupling agent. The epoxy resin reacts with PBT and PA6 simultaneously to produce copolymer that is highly effective in compatibilizing the PBT/PA6 blends. This epoxy E-54 compatibilizer decreases the particle sizes of dispersed phase and results in substantial improvement on mechanical properties. The correlation between the mechanical properties and morphology of the blends was discussed.

关 键 词：聚对苯二甲酸丁二醇酯 尼龙6 共混物 环氧树脂 

分 类 号：O631.21[理学—高分子化学]